[Below is the original script. But a few changes may have been made during the recording of this audio podcast.]
Of the seven continents, only one has not shown a consistent warming in recent decades: Antarctica. But that's been largely thanks to a lack of long-term, reliable temperature records.
Now scientists have combined weather station records with satellite measurements to find that the frozen continent is indeed warming, according to research published in the scientific journal Nature.
Study author Eric Steig is a geochemist at the University of Washington: "What we found, in a nutshell, is that Antarctica is not cooling. … On average, the entire continent is warming and especially, it is warming in winter and spring."
In fact, Steig and his colleagues found that western Antarctica has warmed by as much as one degree Celsius since 1957. And even the extra cooling of eastern Antarctica by the ozone hole has not stopped the overall trend.
But this new research and other recent studies reveal that this cooling is outpaced by the heating of the western Antarctic.
As a whole, the continent at the bottom of the Earth has warmed by roughly half a degree Celsius in the last 50 years—cold comfort for climatologists.